JPH058627U - Control pedal turnover device - Google Patents

Abstract

(57) [Abstract] [Purpose] In a turnover device for an operating pedal, a pair of coil bodies of a double torsion coil spring are suppressed from bending in a direction perpendicular to the coil length direction, and a large spring force is operated. Be able to act on the pedal. A second locking portion 38 of a double torsion coil spring 30 is extended from both outer ends of the coil bodies 32 and 34, passes through the outer peripheral sides of the coil bodies 32 and 34, and is integrally connected at the center thereof. Coil body 32, 34
Is locked to the connecting member 28 on the clutch pedal 18 side at an intermediate position that coincides with the first locking part 36 in the length direction of the first locking part 36, and the first locking part 36 composed of both ends 36a and 36b of the wire is held by the holding member 42. With the above, it is locked to the locking pin 40 on the pedal bracket 12 side while being held so as not to be relatively movable.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a turnover device for an operation pedal, and more particularly, to a pedal bracket and an operation device. Improving urging means arranged between the work pedal and urging the operation pedal Is.

[0002]

[Prior art]

  For example, an automobile clutch pedal is rotatably supported by a pedal bracket. However, when depressing this to disengage the clutch, a relatively large pedal force is required. I need. Therefore, in such an operation pedal as the clutch pedal, At the beginning of the depression, the operation pedal is urged toward the original position, but After turning by a constant angle, urging in the stepping direction It is usually equipped with a turnover device to assist the operation.

[0003]   As such a turnover device, it is lightweight without requiring a large space. It can be configured and the distance between the fulcrums receiving the spring force can be set short. The arm size with a large moment is secured by and and the assist force is applied efficiently. It is proposed to use a torsion coil spring that can One type of such a turnover device is (a) coiled so that the winding directions are different from each other. A pair of coil bodies wound around each other and arranged concentrically adjacent to each other in the central axis direction of the coil From the ends of the pair of coil bodies that are close to each other to the outer peripheral side, respectively. The outer periphery of the extended first locking portion and the outer ends of the pair of coil bodies, respectively. The second locking portion extending toward the side is rotated by the spring force of the pair of coil bodies to rotate the central axis. The fixed pedals are urged in such a way that they move toward and away from each other. Mounted on the bracket and its pedal bracket so that it can rotate about one rotation axis. On one side and the other side of the operating pedal A figure in which the central axis is parallel to the one rotation axis by being locked so as to be rotatable relative to each other. Equipped with a double torsion coil spring, From the position, the first locking portion and the second locking portion are connected to the pedal bracket and the operation. A pair of locking points that are locked to the pedal and the one rotation shaft are located on a substantially straight line. The operating pedal rotates toward its original position until it is depressed to the However, the operation pedal is depressed beyond the turnover point. Then, there is a type in which the operation pedal is urged to rotate in the stepping direction. It

[0004]   The turnover device shown in FIGS. 13 and 14 is an example of the turnover device. The first locking portion 94 is formed in a continuous state between the main bodies 90 and 92. By using a double torsion coil spring 96 which is integrally formed by It is a device. In this device, the first locking portion 94 and the second locking portions 98a, 98b Operate while being biased in directions away from each other around the central axis of the coil A connecting member 102 on the pedal 100 side and a stopper block on the pedal bracket 104 side It is locked to the racket 106. The connecting member 102 has an engaging groove 108. In the engaging groove 108, the first locking portion 94 is rotatable about an axis parallel to the rotating shaft 110. Is rotatably supported. The stopper bracket 106 has a pair of locking holes. 112a, 112b, and a pair of first holes in these locking holes 112a, 112b. By inserting the two locking portions 98a and 98b, they engage the rotating shaft 110. It is rotatably supported about parallel axes. Then, the first locking portion 94 and the first The pair of locking points A and B and the rotating shaft 11 at which the two locking portions 98a and 98b are respectively locked. A double torch is set at a turnover point where the center O of 0 is located on a substantially straight line. The coil spring 96 switches the direction in which the operation pedal 100 is biased. It has become so.

[0005]

[Problems to be solved by the device]

  By the way, in recent years, the operating force of the clutch has inevitably increased with the increase in engine output. In a situation in which it is becoming unstoppable, the clutch pedal operating force can be reduced to a certain degree. Since it is necessary to keep the size (usually 10kgf to 13kgf), lower the pedal effort. It is required to increase the assist power of the turnover device as one of the means Has been done. However, in the conventional turnover device as described above, the spring The fulcrum receiving the force, that is, the positions of the first locking portion and the second locking portion are the length of the coil body. Direction that is offset in the direction and is a pair of both ends of the wire. Since the 2 locking part has a short bearing length in the axial direction, Deformation that tends to bend the central axis of the shaft or escape from the winding direction of the second locking part Since it is not possible to suppress the twist at both ends due to the shape, it is necessary to increase the wire diameter Even if you try to increase the assist power by making the coil spring powerful, As shown in FIG. 15, the pair of coil main bodies are perpendicular to the coil length direction. Is desired because it bends to the side and causes an angular displacement (θ) at both ends of the pair. The performance to do was not obtained. In addition, uneven wear may occur in the second locking part or its bearing. There was also a problem in that a sufficient life of the device could not be obtained due to the twisting. In contrast, The bearing length in the axial direction is set so as to limit the angular displacement in the second locking portion. May be longer, but requires more lateral space Not only that, but there is no solution for uneven wear.

[0006]   The present invention was made in the background of the above circumstances, and the purpose is to: The pair of coil bodies in the double torsion coil spring is in the coil length direction. Suppresses bending in a direction perpendicular to the It is to provide a turnover device that can be operated.

[0007]

[Means for Solving the Problems]

  In order to achieve such an object, the gist of the present invention is that the (a) dub A torsion coil spring, and the operation pedal is moved from the original position to the first The locking portion and the second locking portion are locked to the pedal bracket and the operation pedal. Depress to a turnover point where a pair of locking points and the one rotating shaft are located on a substantially straight line The operation pedal is urged to rotate toward its original position until it is manually operated. , When the operation pedal is depressed beyond the above turnover point, the operation pedal is depressed. A turnover device for urging so as to rotate in the retracting direction, comprising: (b) The first locking portion of the double torsion coil spring is a pair of both ends of the wire. And a pair of both ends thereof are parallel to the one rotation axis. The pedal is held while being held by a holding member that is rotatably arranged around the locking pin. (C) and is engaged with one of the second bracket and the second pedal. The stoppers are located on the outside of each coil body from the outer ends of the pair of coil bodies. It is connected integrally as it extends to the center through The pedal block at an intermediate position that is substantially coincident with the first locking portion in the length direction of the main body. It is locked to the other of the racket and the operation pedal.

[0008]   In the turnover device for the operation pedal, preferably, the locking pin is a coil. It is arranged on the locking pin so as to pass through the inside of the And the other end of the retaining pin and the member that supports the retaining pin and the holding member. And the operation pedal is moved from the original position to the touch position. The operating pedal will rotate in the direction of depression until it reaches near the turnover point. The urging force is applied as described above. The torsion coil spring for reducing the initial pedaling force that reduces the biasing force to the operating pedal to zero. Configured to have.

[0009]

[Effect of action and device]

  The double torsion coil spring in the turnover device is The first locking portion composed of a pair of both ends is provided around the locking pin parallel to one rotation axis. Is retained in a state of being retained by a retaining member that is rotatably disposed, and The locking parts are attached to the outside of each coil body from the outer ends of the pair of coil bodies. It is connected together as it extends to the center through the pair of coil bodies. It is locked at an intermediate position that substantially coincides with the first locking portion in the length direction. For this reason , Twisting at both ends of the first locking portion is limited, and Displacement is greatly suppressed compared to the case where it is not connected integrally, and the angle of a pair of both ends Displacement and bending of the pair of coil bodies in the direction perpendicular to the coil length direction are suppressed. The double torsion coil spring is always kept in a stable posture. to this The double torsion coil spring has a larger wire diameter to increase the spring force. Even in the case, the large spring force can be effectively applied to the operation pedal. Is sufficient to handle the large clutch operating force that accompanies the increase in engine output. A turnover device that can secure the cyst force is provided. Also, a pair of both The ends are held by a holding member, which cancels each other out even if a twisting force is generated at both ends of the pair. The holding member has a pair of members only in the direction perpendicular to the rotation axis direction. The spring force of the coil body is applied and the holding member and the member to which it is locked Uneven wear is satisfactorily avoided and the life of the device is improved.

[0010]   Further, in the case of being configured with the above-mentioned torsion coil spring for reducing the initial pedaling force, The holding member is operated by the torsion coil spring for reducing the initial pedaling force Only operate the operation pedal until the pedal reaches the turnover point from its original position. Since the urging force is applied so as to rotate in the closing direction, that portion is Double torsion coil spring is applied from the urging force in the opposite direction to the stepping direction. It is pulled and the stepping resistance is reduced. In this case, the torsion coil for reducing the initial pedaling force Since the spring is arranged on the locking pin to which the holding member is attached, the tension coil is The device is simpler and more Has the advantage of being compact.

[0011]

【Example】

  An embodiment of the present invention will be described below in detail with reference to the drawings.

[0012]   1 and 2 show a club equipped with a turnover device 10 according to an embodiment of the present invention. FIG. 3 is a front view and a left side view showing a part of the touch pedal operating device in a cutaway manner. vehicle The pedal bracket 12, which is fixedly arranged in front of the driver's seat inside, has a substantially horizontal position. A rotating shaft 16 is supported so as to be rotatable around a bolt 14 that is inserted and provided. And a clutch pedal as an operation pedal integrally attached to the rotary shaft 16. The dull 18 is provided so that it can be depressed. The pedal bracket 12 has a clutch In the state where the base end side of the touch pedal 18 is surrounded with the pedal bracket 12, The upper bracket 20 is integrally fixed. The stopper bracket 20 has a While the topper 22 is attached, the clutch pedal 18 has an abutting member 24. It is fixed integrally and the clutch pedal 18 rotates counterclockwise in FIG. When this contact member 24 contacts the stopper 22, the clutch pedal 1 Further counterclockwise rotation of 8 is prevented and its original position is defined. ing. The clutch pedal 18 shown by the solid line in FIG. 2 is kept in the original position. It is in a held state. From this original position, the clutch pedal 18 By operating in the clockwise direction, the engagement state of the clutch device (not shown) The state is set to be released. The stroke is at the bottom of the pedal bracket 12. A stopper 26 is provided to prevent clockwise rotation of the clutch pedal 18. It is supposed to be. In addition, the clutch pedal 18 should be depressed to the full stroke. The operated state is shown by a chain double-dashed line in FIG.

A connecting member 28 is integrally fixed to the rotating shaft 16 adjacent to the clutch pedal 18, and rotates around the shaft center O _{1 of the} bolt 14 as the clutch pedal 18 rotates. It is like this. The turnover device 10 of this embodiment is composed of a double torsion coil spring 30 and the like arranged between the connecting member 28 and the stopper bracket 20.

As shown in the front view and the left side view of FIGS. 3 and 4, the double torsion coil spring 30 is wound in a coil shape so that the winding directions thereof are different from each other, and the double torsion coil springs 30 are adjacent to each other in the central axis direction of the coil. And a pair of coil main bodies 32 and 34 arranged concentrically with each other, and a pair of both end portions 36a extending toward the outer peripheral side from the ends of the pair of coil main bodies 32 and 34 which are close to each other. And 36b, and a pair of coil bodies 32, 34 extending outwardly from the outer ends of the pair of coil bodies 32, 34, respectively, and passing outside the coil bodies 32, 34, respectively. The second locking portion 38 extending toward the center is provided. By forming the second locking portion 38 in a continuous state in the middle of the coil bodies 32, 34, the double torsion coil spring 30 is configured to be continuous by one wire. In the double torsion coil spring 30 configured as described above, the first locking portion 36 has the stopper bracket 20, and the pedal bracket further, with the central axes of the coil bodies 32 and 34 being parallel to the rotating shaft 16. 12, the second locking portion 38 is locked to the connecting member 28 and further to the clutch pedal 18. The double torsion coil spring 30 is inserted in a state in which the pair of coil bodies 32 and 34 are twisted in the tightening direction, and the first locking is performed by the spring force of the coil bodies 32 and 34. The portion 36 and the second locking portion 38 are urged in directions away from each other around the axis O ₄ of the coil bodies 32 and 34.

A locking pin 40 is arranged on the stopper bracket 20 in parallel with the rotation shaft 16, and the first locking portion 36 of the double torsion coil spring 30 is rotatable around the locking pin 40. While being held by the holding member 42 made of synthetic resin arranged in the above position, the locking pin 40 can be rotated about the axis O ₂ thereof, in other words, about the axis parallel to the rotating shaft 16. It has been stopped. As shown in the perspective view of FIG. 5, the holding member 42 is provided with two engaging grooves 44 in a predetermined angular range in the circumferential direction around the axis, and is bent in a hook shape. The ends of the pair of both end portions 36a and 36b of the first locking portion 36 are pressed by the spring force of the pair of coil bodies 32 and 34 and engaged with each other so as to wind around the engaging groove 44. . As described above, the first locking portion 36 is held by the holding member 42 so as not to move relative to each other, so that even when the pair of coil bodies 32 and 34 escape from the winding direction and try to deform in different directions, Twisting at both ends 36a and 36b in a discontinuous state is limited, and the pair of coil bodies 32 and 34 may be bent in a direction perpendicular to the coil length direction or both ends 36a and 36b may be angularly displaced. Suppressed.

On the other hand, a U-shaped bush 46 made of an oil-containing resin for supporting the second locking portion 38 of the double torsion coil spring 30 is attached to the tip side of the connecting member 28. As shown in the perspective view of FIG. 6, the U-shaped bush 46 has a U groove 48 inside and is pressed against the U groove 48 by the spring force of the pair of coil bodies 32 and 34. The second engaging portion 38 engaged in the state is rotatable about the axis O ₃ in the U groove 48 of the U-shaped bush 46, in other words, about the axis parallel to the rotating shaft 16. Held in. As is clear from FIG. 7 which is a sectional view taken along line VII-VII in FIG. 2, the holding member 42 and the connecting member 28 are respectively arranged at positions substantially coincident with each other in the axial direction of the rotating shaft 16, The locking portion 38 is locked to the connecting member 28 at an intermediate position that substantially coincides with the first locking portion 36 in the longitudinal direction of the coil bodies 32 and 34. For this reason, the double torsion coil spring 30 is always maintained in a stable posture in combination with the fact that the first locking portion 36 is held by the holding member 42 so as not to be relatively movable. The U-shaped bush 46 is provided with an outer peripheral groove 50 having a groove width equal to the plate thickness of the connecting member 28 on the outer peripheral side so that the U-shaped bush 46 does not easily fall off from the connecting member 28 even after mounting.

The double torsion coil spring 30 expands the angle O ₂ —O ₄ —O ₃ when the shaft centers O ₂ , O ₄ , and O ₃ are connected so that O ₂ —O ₃ is separated. In order to apply an urging force to the shaft, the connecting member 28 turns the state in which the shaft center O ₃ of the bush 46 is located on the line connecting the shaft center O ₁ of the bolt 14 and the shaft center O ₂ of the locking pin 40. As the over point, the urging direction is switched to the left or the right and urged. That is, depending on the size of the rotation angle by the depression operation of the clutch pedal 18, the axis O ₃ is located on the line connecting the axis O ₁ and the axis O ₂ as described above, which is a predetermined constant value. The urging direction to the clutch pedal 18 is switched at the angle, and the basic function of the turnover device 10 is obtained.

Since the double torsion coil spring 30 is arranged between the stopper bracket 20 and the connecting member 28 based on the spring force of the pair of coil bodies 32 and 34, the spring force does not act. When the shaft center O ₂ -O ₃ is separated beyond the above range, the double torsion coil spring 30 may drop off from the clutch pedal operating device. However, in this embodiment, the stroke stopper 26 depresses the clutch pedal 18. By restricting the rotational range in the direction, the axial centers O ₂ -O ₃ cannot be separated until the spring force of the coil bodies 32, 34 ceases to act.

[0019]   Next, the operation of the clutch pedal operating device configured as described above will be described.

[0020]   The clutch pedal 18 is depressed from the original position to rotate in the depression direction. Until the rotation angle reaches the fixed angle, the axis O of the U-shaped bush 38 ₃ But the axis O of the bolt 14₁And the axis O of the locking pin 40₂Above than the line connecting Double torsion coil spring 30 axis O_FourOn the side, that is, the connecting member 28, Since it is on the left-hand side in FIG. 2, the double torsion coil spring 30 As a result, the connecting member 28 is biased counterclockwise, and the clutch pedal 18 has a rotating shaft 16 Around the direction opposite to the stepping direction of the clutch pedal 18, that is, in the original position. An onward moment is applied by the turnover device 10.

Next, when the clutch pedal 18 is rotated from the original position by the predetermined angle, the axis O ₃ is positioned on the line connecting the axes O ₁ and O _2. . At the position of this turnover point, since the double torsion coil spring 30 does not bias the connecting member 28 in either direction, the moment applied to the clutch pedal 18 becomes zero. The magnitude of the stepping force at this time is exactly equal to the magnitude of the resistance force in the releasing operation of the clutch device.

Then, when the clutch pedal 18 further depresses and the amount of rotation of the clutch pedal 18 exceeds the predetermined angle, the shaft center O ₃ is located above the shaft center O ₄ rather than the line connecting the shaft centers O ₁ and O _2. 2, that is, to the right side of the connecting member 28 in FIG. 2, the double torsion coil spring 30 biases the connecting member 28 clockwise. Therefore, the direction of the moment applied to the clutch pedal 18 by the turnover device 10 is the stepping direction of the clutch pedal 18, which assists the stepping operation of the clutch pedal 18 and is required for the stepping operation. The pedal effort is reduced. As shown in FIG. 8, the state of the vicinity of the turnover device 10 when the clutch pedal 18 is rotated to a certain angle beyond the turnover point, as shown in FIG. Since the dimension R is large and the dimension R can be secured large, the double torsion coil spring 30 can efficiently apply the assist force.

[0023]   Here, the second locking portion 38 of the double torsion coil spring 30 has a pair of After extending outward from the outer ends of the coil bodies 32 and 34, It passes through the outside of the coil bodies 32 and 34 and is connected at an intermediate position between the coil bodies 32 and 34. And the first locking portion 36 in the longitudinal direction of the coil bodies 32, 34. While being locked to the connecting member 28 at an intermediate position that substantially coincides with The first locking portion 36 which is composed of a and 36b and is not integrally connected is By engaging the end portions 36 a and 36 b with the holding groove 44, the holding member 42 is supported. It is locked to the stopper bracket 20 while being held so that it cannot move relatively. Therefore, the coil bodies 32 and 34 have the first locking portion 36 and the second locking portion 38 therein. Even in the state in which the spring force acts so as to separate them from each other around the core wire, the first The twisting at both ends 36a and 36b of the locking portion 36 is limited and 2 The displacement of the locking portion 38 is significantly suppressed compared to the case where the displacement is not integrally connected as in the conventional case. Are restrained, the both ends 36a and 36b are angularly displaced, and the coil bodies 32 and 34 are Is suppressed from bending in a direction perpendicular to the coil length direction, The torsion coil spring 30 is always kept in a stable posture. This will Increase the wire diameter of the brution coil spring 30 to increase the spring force. Even if it is increased, the large spring force is satisfactorily applied to the clutch pedal 18. It can be used. Further, the holding member 42 holds it so that it cannot move relative to it. Twisting force is generated at both end portions 36a and 36b of the first locking portion 36 that has been However, since they act symmetrically and cancel each other, the holding member 42 The spring force of the coil bodies 32 and 34 acts only in the direction perpendicular to the axial center of the coil. Therefore, uneven wear between the holding member 42 and the locking pin 40 is favorably avoided, and durability is improved. Be improved.

[0024]   Further, the double torsion coil spring 30 includes the first locking portion 36 and the second locking portion 36. When the locking portion 38 is biased by the pair of coil bodies 32 and 34, the holding member 42 And U-shaped bush 46 are pressed and locked respectively. Therefore, for example, even after all the other members are assembled, the first locking portion 36 and It can be easily assembled by simply bringing the second locking portion 38 and the second locking portion 38 close to each other. There is an advantage that a series of assembling work becomes extremely easy.

Further, by configuring the turnover device 10 by using the double torsion coil spring 30, the distance between the shaft center O ₂ and the shaft center O ₃ , which are the pair of locking points, is set to the shaft center O _1. Since it can be set shorter than the distance between -O _3, the arm with a large moment (in FIG. 8) compared to the conventional turnover device using the compression coil spring 114 as shown in FIG. The dimension R) can be secured, and the assist force can be efficiently applied, and the hysteresis in one operation cycle can be suppressed to a relatively small value. FIG. 17 shows changes in the assist force with respect to the depression stroke of the clutch pedal 18 in comparison with the case of the device shown in FIG.

[0026]   Next, another embodiment of the present invention will be described. The parts common to the above-mentioned embodiment Are denoted by the same reference numerals and description thereof will be omitted.

[0027]   9 and 10 show a front view and a partially cutaway left side view, respectively. In comparison with the above-described embodiment, the turnover device 60 has a holding part instead of the holding member 42. In addition to disposing the material 62, the locking pin 40 has a torsion coil for reducing the initial pedaling force. The spring 64 is additionally provided. Double torsion coil The pair of both end portions 36a and 36b of the first locking portion 36 of the spring 30 is a coil. The spring force of the main bodies 32 and 34 presses and engages the holding member 62. It As shown in a perspective view of the holding member 62 in FIG. Similarly, a pair of engaging grooves 66 corresponding to the hook shape of the both end portions 36a and 36b are provided. The contact wall 68 is integrally formed with the contact wall 68 protruding from the outer peripheral side. On the other hand, the torsion coil spring 64 for reducing the initial pedaling force includes a pair of coils 70 and 7. 2 are separated from each other by a distance corresponding to the axial dimension of the holding member 62. The wire rod is continuously and integrally formed. One end of each of the coils 70 and 72 The outer end portions 74 and 76 as a pair are provided on the stopper bracket 78. While being locked in the locking holes 80 and 82 of the coil 70 so that they cannot move relative to each other, the coil 70 , 72, the other ends of which are connected to each other at an intermediate part 84 Are locked by being pressed against the contact wall 68 of the holding member 62.

[0028]   That is, the torsion coil spring 64 is composed of the pair of coils 70 and 72. It is inserted in a state where it is twisted in the direction in which the winding is tightened, and through the connecting portion 84. Bias the holding member 62 so as to rotate it to the left of the locking pin 40 in FIG. So that the connecting member 28 is rotated clockwise in FIG. Urge to. However, this urging force is applied to the double torsion coil spring 30. It is small compared to the urging force by. In addition, this twist coil for initial pedal effort reduction The pulling 64 is adapted to move the shaft from the initial state where the clutch pedal 18 is held in the original position. Heart O₁, Axis O₂, Axis O₃Until the state of being aligned on As described above, the holding member 62 is urged to rotate counterclockwise. In other words , The connecting member 28 rotates with the rotation of the clutch pedal 18, and the axis O₁, Axis O ₂ , Axis O₃Near the turnover point where is on a straight line, that is, the double torch Up to a position near the position where the biasing rotation direction of the coil spring 30 is switched. When the clutch pedal 18 is depressed by, the twisting coil sp When the ring 64 becomes natural and the clutch pedal 18 is further depressed, the above The connecting portion 84 is separated from the abutment wall 68, and thereafter, no urging force is applied. Will not stop. FIG. 12 shows the state at this time. For this reason, the clutch pedal While the 18 is depressed from the original position to near the turnover point, double Torsion coil spring for reducing the initial pedaling force from the biasing force of the torsion coil spring 30. The urging force of the gear 64 is subtracted.

[0029]   Thus, according to the turnover device 60, the clutch pedal 18 is Before reaching the point near the turn-over point, the torsion coil spring for initial pedal effort reduction The stepping force of the clutch 64 acts in the direction of the clutch pedal 18 toward the original position. However, after exceeding the turnover point, sufficient resistance is reduced. The cyst power can be obtained. Further, the torsion coil spring 64 for reducing the initial pedaling force is a holding portion. Since the material 62 is disposed on the locking pin 40 to which the material 62 is attached, a tension coil spring is provided. The device is simpler and more compact than the case where the devices are hooked directly on the operation pedal. There are advantages to be configured.

[0030]   The embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to this. Can also be carried out.

[0031]   For example, in the above embodiment, the double torsion coil spring 30 Of the pedal bracket 12 side through the holding members 42 and 62. The second engaging portion 38 is engaged with the upper brackets 20, 78 and the second engaging portion 38 is engaged with the clutch pedal. It was locked to the connecting member 28 on the rule 18 side, but instead of this, the first locking portion is held. The second locking portion is locked to the clutch pedal side via the member and the pedal bracket The turnover device may be configured so as to be locked on the door side.

[0032]   Further, in the above-described embodiment, the axis O of the U-shaped bush 46 is₃Is the rotating shaft 16 Axis O₁And the axis O of the locking pin 40₂It is located between the and₂And axis O ₃ Was urged to separate from each other, but the axis O₁Axis O₂And axis O₃When Between the first locking portion and the second locking portion, that is, the axis O₂And axis O₃Toga Double-torsion under the condition that they are urged toward each other by the spring force of the body. A coil spring may be provided.

[0033]   Further, in the above-described embodiment, based on the spring force of the coil bodies 32 and 34, The pair of both end portions 36a and 36b of the first locking portion 36 push against the holding members 42 and 62. The second engaging portion 38 is attached to the U-shaped bush 4 in the U-shaped bush 46 while being engaged. 8 were pressed against and engaged with each other, for example, a pair of both end portions 36a and 36b Holding member having a fitting portion for integrally gripping the body by its own elastic force, and a second locking portion A bush or the like that similarly grips 38 may be used.

[0034]   Further, in the above-described embodiment, the double torsion coil spring 30 Although the 2 locking portion 38 was locked to the connecting member 28, the clutch pedal 18 and the engaging The shape of the stopper 38 is changed and the position of the clutch pedal 18 is set to the coil main body 32. , 34 by changing to the central portion in the length direction, the second locking portion 38 is straightened. It is also possible to be configured to engage with the clutch clutch pedal 18. Also, the first The locking portion 36 is locked to the stopper brackets 20, 78 via the holding members 42, 62. However, the shape of the first locking portion 36 is changed and the locking pin 40 is pedaled. By providing from the bracket 12, the first locking portion 36 can be directly connected to the pedal bracket. It is also possible to configure so as to lock with 12.

[0035]   Further, in the above-described embodiment, the holding members 42 and 62 are arranged in the axial direction of the locking pin 40. There is no mention of means for positioning in the center of the A pair of sleeves are inserted on both sides of the holding members 42, 62 in the axial direction of 40. May be added as a spacer, or such a sleeve may be integrated. The holding member formed in 2 may be replaced with the holding members 42 and 62 and arranged. Note that In this case, the torsion coil spring 64 for reducing the initial pedaling force is provided outside the sleeve. It is arranged on the circumference side.

[0036]   Further, the torsion coil spring 6 for reducing the initial pedaling force in the embodiment of FIG. 9 described above. 4, a pair of coils 70 and 72 is composed of a single wire and Although it was arranged so as to be located on both sides of the holding member 62, the pair of coils 70 and 72 may be divided into two members, or only one of them is provided. There is no problem even if it is a hurt.

[0037]   Further, the torsion coil spring 6 for reducing the initial pedaling force in the embodiment of FIG. 9 described above. 4, the pair of coils 70 and 72 have outer ends 74 and 76, which are stopper brackets. The locking portion 80 is locked in the locking holes 80 and 82 of the lever 78 so that the connecting portion 84 cannot move. It was locked while being pressed against the contact wall 68 of the holding member 62, but instead of this, , The connecting portion 84 is fixed to the holding member 62 such that the connecting portion 84 cannot move, and the end portion 74, 76 is inserted into an arc-shaped slit or the like provided on the stopper bracket 78. It may be configured to be locked in a state of being abutted so as to be relatively movable.

Further, in the above-described embodiment, the pair of coil bodies 32 and 34 of the double torsion coil spring 30 are arranged so as to be located above the axial centers O ₂ and O _3. Alternatively, they may be arranged so as to be located below the axes O ₂ and O ₃ .

[0039]   Further, in the above-described embodiment, the double torsion coil spring 30 is 2 is located on the right side of the clutch pedal 18, that is, on the driver side in the vehicle. Although it was configured as shown in FIG. Double toe on the left side of the clutch pedal 18, that is, on the body frame side in front of the driver's seat. It may be configured to position the torsion coil spring.

[0040]   Although not illustrated one by one, the present invention is subject to various changes and modifications based on the knowledge of those skilled in the art. It can be carried out in a mode in which goodness is added.

[Brief description of drawings]

FIG. 1 is a front view of a clutch pedal operating device including a turnover device according to an embodiment of the present invention.

FIG. 2 is a left side view showing a part of the clutch pedal operating device of FIG. 1 by cutting out.

3 is a front view of a double torsion coil spring which is a component of the turnover device of FIG. 1. FIG.

FIG. 4 is a left side view of the double torsion coil spring shown in FIG.

5 is a perspective view of a holding member that is a component of the turnover device of FIG.

6 is a perspective view of a U-shaped bush that is a component of the turnover device of FIG. 1. FIG.

7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is a diagram showing a state in which a clutch pedal is depressed in the turnover device of FIG.

FIG. 9 is a front view of a clutch pedal operating device having a turnover device according to another embodiment of the present invention.

FIG. 10 is a left side view showing a part of the clutch pedal operating device of FIG. 9 in a cutaway manner.

11 is a perspective view of a holding member which is a component of the turnover device of FIG.

FIG. 12 is a view showing a state where the clutch pedal is depressed in the turnover device of FIG.

FIG. 13 is a front view of a pedal device including a conventional turnover device using a double torsion coil spring.

FIG. 14 is a left side view showing the pedal device of FIG. 13 with a part thereof cut away.

FIG. 15 is a diagram illustrating a deformed state of a double torsion coil spring which is a component of the turnover device of FIG.

FIG. 16 is a front view of a pedal device including a conventional turnover device using a compression coil spring.

FIG. 17 is a graph showing changes in assist force with respect to a depression stroke of an operation pedal in the turnover device of FIG.
It is a graph shown in comparison with the case of the turnover device of No. 6.

[Explanation of symbols]

10,60: Turnover device 12: Pedal bracket 16: rotation axis (one rotation axis) 18: Clutch pedal (operation pedal) 30: Double torsion coil spring 32, 34: coil body 36: First locking portion 36a, 36b: Both ends 38: Second locking portion 40: Locking pin 42, 62: holding member 64: Torsion coil spring for reducing initial pedal effort 70, 72: coil 74, 76: end (one end) 84: Connection part (other end part)

Continued front page    (72) Creator Satoru Maruyamano             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A pair of coil main bodies which are wound in a coil shape so that their winding directions are different from each other and are concentrically arranged adjacent to each other in the direction of the central axis of the coil. Of the pair of coil bodies, and first locking portions extending from the respective end portions of the pair of coil bodies to the outer peripheral side, and second locking portions extending from the outer end portions of the pair of coil body portions to the outer peripheral side, respectively. Of a pedal bracket fixed in position and an operation pedal disposed on the pedal bracket so as to be rotatable about one rotation axis in a state of being urged toward or away from each other by the spring force of A double torsion coil disposed so that the central axis is parallel to the one rotation axis by being locked to one and the other so as to be relatively rotatable about an axis parallel to the one rotation axis. With spring From the original position of the operation pedal, a pair of locking points at which the first locking portion and the second locking portion are locked to the pedal bracket and the operating pedal and the one rotation shaft are substantially aligned with each other. The operation pedal is urged to rotate toward the original position until it is depressed to the turnover point, but when the operation pedal is depressed beyond the turnover point, the operation is performed. A turnover device for urging a pedal to rotate in a stepping direction, wherein the first locking portion of the double torsion coil spring is composed of a pair of both ends of a wire, and A pair of both ends are locked to one of the pedal bracket and the operation pedal in a state of being held by a holding member rotatably arranged around a locking pin parallel to the one rotation shaft, and The second locking portions are integrally connected in a state of extending from the outer ends of the pair of coil bodies to the center through the outer sides of the coil bodies, respectively, and at the same time, A turnover device for an operation pedal, wherein the turnover device is engaged with the other one of the pedal bracket and the operation pedal at an intermediate position that substantially coincides with the first engagement portion in the length direction. 2. The locking pin is arranged on the locking pin so as to be inserted through the coil, and one end and the other end of the coil support the locking pin or the locking pin. By being engaged with each of the member and the holding member, a biasing force acts so that the operation pedal rotates in the stepping direction until the operation pedal reaches the vicinity of the turnover point from the original position. The turnover device for an operating pedal according to claim 1, further comprising a torsion coil spring for reducing an initial pedaling force, which becomes a natural state when the vicinity of the turnover point is exceeded and the biasing force to the operating pedal becomes zero.